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Subject: Re: Yet Another difficult position for chess programs

Author: Vincent Diepeveen

Date: 19:05:36 01/05/01

Go up one level in this thread


how about posting what move it has to find and why?

On January 05, 2001 at 19:23:56, Joshua Lee wrote:

>Fritz6 - IM Nathanael Situru
>4rrk1/1q4b1/p5p1/1pPP1p1p/4p1n1/1P4N1/P3QBPP/1R1R2K1 b - - 0 1
>
>Analysis by Fritz 6:
>
>23...Nxf2--
>  =  (0.19)   Depth: 1/3   00:00:00
>23...Nxf2-- 24.Qxf2
>  ²  (0.66)   Depth: 1/3   00:00:00
>23...Nxf2 24.Qxf2 f4
>  ²  (0.47)   Depth: 2/6   00:00:00
>23...Nxf2 24.Qxf2 f4 25.Ne2
>  ²  (0.50)   Depth: 3/13   00:00:00  1kN
>23...Nf6!
>  ²  (0.47)   Depth: 3/13   00:00:00  1kN
>23...Nf6 24.c6 Qc7 25.Qe3
>  ²  (0.69)   Depth: 4/11   00:00:00  2kN
>23...Nxf2!
>  ²  (0.66)   Depth: 4/11   00:00:00  2kN
>23...Nxf2! 24.Qxf2 f4 25.Ne2 Qc7
>  ²  (0.34)   Depth: 4/11   00:00:00  4kN
>23...h4!
>  ²  (0.31)   Depth: 4/11   00:00:00  4kN
>23...h4 24.Nf1 Nxf2 25.Qxf2 h3 26.Ne3 hxg2 27.Kxg2
>  ²  (0.56)   Depth: 5/15   00:00:00  12kN
>23...Nxf2!
>  ²  (0.53)   Depth: 5/19   00:00:00  14kN
>23...Nxf2! 24.Qxf2 f4 25.Ne2 f3 26.gxf3
>  ²  (0.47)   Depth: 5/19   00:00:00  17kN
>23...Nxf2 24.Qxf2 Re5 25.c6 Qc7 26.Qe3 f4
>  ²  (0.34)   Depth: 6/16   00:00:00  32kN
>23...Re5!
>  ²  (0.31)   Depth: 6/18   00:00:00  59kN
>23...Re5! 24.c6 Qc7 25.Rbc1 Rd8 26.Rc5 Nxf2 27.Qxf2
>  =  (0.00)   Depth: 6/18   00:00:00  70kN
>23...Re5 24.c6 Qc7 25.Rbc1 Rd8 26.Rc5 Nxf2 27.Qxf2
>  =  (0.00)   Depth: 7/17   00:00:01  109kN
>23...Re5!
>  =  (-0.16)   Depth: 8/22   00:00:01  236kN
>23...Re5! 24.c6 Qc7 25.a4 Nxf2 26.Qxf2 Rd8 27.axb5 axb5 28.Qc5
>  =  (-0.19)   Depth: 8/24   00:00:01  330kN
>23...Re5 24.d6 e3 25.Be1 f4 26.Bc3 fxg3 27.Bxe5 Bxe5
>  =  (-0.25)   Depth: 9/25   00:00:04  1178kN
>
>(Lee, N.B.I 05.01.2001)
>Fritz Has yet to find this IM's move after 2 and a half hours on a 800Mhz athlon
>i am trying it out with 184MB of hash tables which according to the fritzmark is
>not as good as just 128Mb??? my computer has plenty of ram so this i don't
>understand (256mb).



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